#include "../strict.h"
#include <vector>
#include <cstdio>
#include <cstring>
#include <cstdlib>


using namespace std;

Input in;


string s;


int main()
{
	in.readToken(1, 3e5, "a-z");	
	in.readEoln();
	in.readEof();
	return 0;
}
